赤眼蜂寄生对亚洲玉米螟卵内蛋白质变化的影响   总被引：1，自引：1，他引：1  

李元喜  戴华国  姜金林  符文俊 《中国生物防治》2004,20(4):243-247

采用SDS聚丙烯酰胺凝胶电泳方法比较了玉米螟赤眼蜂寄生对亚洲玉米螟卵内蛋白质变化的影响。结果发现,寄生发生48h后,蛋白质谱带出现明显差异。被寄生和未被寄生卵内含有的97kD蛋白质在60h后明显减少,而前者含有的90kD蛋白质在寄生发生60h时含量明显增加;此外,被寄生和未被寄生卵电泳后均出现约50和44kD蛋白质条带,但在寄生发生84h后,这两条蛋白质带明显变浅,且未被寄生卵的改变更明显。同一时期被寄生和未被寄生卵间约有50%蛋白质条带出现在相同位置,而72、96h的寄生和未被寄生卵间约有30%。被寄生和未被寄生卵之间,同一时期的蛋白质条带数一般相差4条左右,但寄生发生6h后相差的条带数多达9条,这一时期出现与寄生和抗寄生有关的特异性蛋白质的可能性较大。  相似文献   

用玉米螟作寄主繁殖管氏肿腿蜂   总被引：5，自引：0，他引：5  

程惠珍  卢美娟  林谦壮 《中国生物防治》1989,(4)

本文报道繁殖和利用管氏肿腿蜂防治天牛中的几个关键技术问题的研究结果,试验在北京和山东平邑进行。用11种害虫作寄主繁蜂,以玉米螟为最合适。玉米螟可以用人工饲料大量饲养,用控制温湿度和光照时间,人工诱导进入滞育的玉米螟作寄主,寄生率达69.1％以上,繁蜂所需时间30天左右,每头幼虫繁蜂数为35.7头。在5、10、15℃中贮存肿腿蜂,以5℃中的死亡率为最低,贮存1、4、6个月死亡率分别为8.8％、41.2％、67.6％。在10℃中贮存1～6个月不影响寄生率,但出蜂数和雌性比随贮存时间的延长而下降。长期连续用玉米螟繁蜂,肿腿蜂生活力减退,用红缘天牛复壮,取得良好结果。1983～1984年在100余亩面积上释放肿腿蜂防治咖啡虎天牛和菊花天牛,寄生率均达70％以上。  相似文献   

昆明地区白蜡虫天敌寄生蜂种群结构与动态研究          下载免费PDF全文

赵杰军  王自力  王绍云  叶寿德  陈勇  陈晓鸣 《林业科学研究》2004,17(6):746-750

采用定点诱集方法研究了昆明地区白蜡虫天敌寄生蜂的种群结构与优势种群的动态变化规律。结果表明,昆明地区白蜡虫天敌寄生蜂达11种,均属小蜂总科;以白蜡虫花翅跳小蜂、白蜡虫阔柄跳小蜂和中华花翅跳小蜂为优势种群,分别占整个种群数量的45．9％、37．3％和11．4％。优势种群数量变动是影响混合种群产生波动的主要因素。建议抓住优势种群发生高峰期,制定白蜡虫天敌寄生蜂的有效控制措施。  相似文献   

Factors influencing the parasitism of codling moth eggs by Trichogramma cacoeciae March. and T. principium Sug. et Sor. (Hymen. Trichogrammatidae)     

H. Makee 《Journal of pest science》2005,78(1):31-39

Non-choice laboratory experiments were conducted to evaluate the influence of host acceptance, previous rearing host, host age and the contact time between parasitoids and host on the efficacy of Trichogramma cacoeciae Marchal and T. principum Sug. et Sor. against the codling moth Cydia pomonella. The tendency of T. cacoeciae and T. principum females to attack the codling moth was similar to E. kuehniella, and it was not affected by the previous rearing host. T. cacoeciae showed a greater preference for codling moth eggs than T. principum. A high mean number of emerged F₁ progeny was observed when both parasitoids were sequentially reared on codling moths. Codling moth acceptance, the number of parasitized eggs and the number of emerged progeny were higher when younger codling moth eggs were offered. The tendency of female parasitoids to oviposit remained unchanged when the contact time with the host was prolonged. When the contact time was increased, the number of parasitized eggs and emerged offspring was higher. The results showed that the codling moth fertility (egg hatch) was reduced when younger eggs were offered and when the contact time with the parasitoids was increased. T. cacoeciae was more efficient in reducing codling moth fertility. The current study provided essential information necessary to increase the efficiency of T. cacoeciae and T. principum against the codling moth.  相似文献   

云南常见食用胡蜂种类及其食用价值   总被引：6，自引：2，他引：6       下载免费PDF全文

冯颖  陈晓鸣  叶寿德  王绍云  陈勇  王自力 《林业科学研究》2001,14(5):578-581

胡蜂又称马蜂或黄蜂 ,为膜翅目 ( Hymenoptera)的捕食性肉食昆虫 ,可捕食多种昆虫 ,筑巢群居 ,雌蜂有一毒囊分泌蜂毒。由于胡蜂捕食许多农林害虫 ,可作为天敌用于生物防治。蜂毒对治疗血栓病等有良好效果 ,人工饲养胡蜂和提取蜂毒技术的发展 ,使蜂毒应用于医药卫生行业成为可能 [1 ]。另外 ,许多胡蜂的幼虫和蛹可供人类食用。据记载 [2 ] ,中国民间很早就有食用胡蜂幼虫和蛹的习俗 ,唐代刘恂《岭表录异》中有胡蜂采集和烹调方法的详细记载。世界上许多民族有食用胡蜂幼虫和蛹的习俗 ,在墨西哥 ,常见的食用胡蜂有 1 0多种 ,食用方法有生吃和…  相似文献   

Performance of Chouioia cunea reared from a coleopteran alternative host as a biocontrol agent against the invasive lepidopteran pest,Hyphantria cunea     

Tian-Hao Li  Xingeng Wang  Nicolas Desneux  Li-Wei Song  Lian-Sheng Zang 《Pest management science》2023,79(4):1500-1507

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果树介壳虫寄生蜂一新记录属二新种(膜翅目:跳小蜂科)     

徐志宏  林祥海 《林业科学》2005,41(2):96-99

报道采自山东、江苏、浙江、福建 ,寄生梨圆蚧、核桃圆蚧和柑桔长白蚧的寄生蜂新种 :长棒盾蚧跳小蜂(CoccidencyrtuslongiclavatusXusp .nov.)和采自山西、陕西 ,寄生枣大球蚧、草履蚧的寄生蜂新种 :长柄麦厄跳小蜂 ,新种MayrencyrtuslongiscapusXusp .nov .。对新种进行了详细描述 ,并给出我国盾蚧跳小蜂属 3个种的检索表。  相似文献   

Detection of single-base substitution in an esterase gene and its linkage to malathion resistance in the parasitoid Anisopteromalus calandrae (Hymenoptera: Pteromalidae)     

Yu-Cheng Zhu  Alan K Dowdy  James E Baker 《Pest management science》1999,55(4):398-404

Anisopteromalus calandrae (Howard) (Hymenoptera: Pteromalidae) is an important parasitoid of stored-grain insect pests. Partial cDNA sequences of an esterase-like enzyme have been obtained from a malathion-resistant (R) strain and a susceptible (S) strain of this wasp. A single-base substitution in the R strain has been confirmed by using PCR amplification of specific allele (PASA) to amplify genomic DNA extracted from individual resistant and susceptible parents, F₁ hybrids from double reciprocal crosses, and progeny from backcrosses. The R allele appeared to be inherited in a strict Mendelian fashion in both diploid female and haploid male progeny. The esterase fragment co-segregated with resistance in these crosses and backcrosses. Female wasps in a mixed population of A calandrae that survived a malathion screen carried the R allele for the esterase-like enzyme, while those wasps that died did not have the R allele. The single base-pair mutation, guanine in the R strain and thymine in the S strain, presumably results in a tryptophan-to-glycine amino acid substitution in the encoded protein. We do not know how these amino acid substitutions may relate to functional differences in the enzyme. However, this esterase gene or another linked esterase gene may encode the resistance-associated malathion detoxifying activity in the R strain. © 1999 Society of Chemical Industry  相似文献   

High temperatures do not decrease biocontrol potential for the host-killing parasitoid Neochrysocharis formosa (Hymenoptera: Eulophidae) on agromyzid leafminers          下载免费PDF全文

XUAN Jing-li  XIAO Yue  YE Fu-yu  ZHANG Yi-bo  TAO Shu-xia  GUO Jian-yang  LIU Wan-xue 《农业科学学报》2022,21(6):1722-1730

Temperature, as a critical abiotic factor, might influence the effectiveness of biological control by parasitoids in host-parasitoid systems. In this study, Neochrysocharis formosa (Westwood), a larval endoparasitoid, is used to investigate the efficacy of biological control on a vegetable agriculture pest, Liriomyza sativae Blanchard, reared on kidney bean (Phaseolus vulgaris L.), at four constant temperatures (26, 29, 32, and 35°C) under laboratory conditions. Our results show that high temperatures (29, 32, and 35°C) do not significantly affect lifetime host-killing events of female adults by increased daily host-killing events compared to temperature of 26°C, although their lifespans decrease with an increase in temperatures. Each life-history trait of female adults (lifespan, parasitism, stinging, or non-reproductive host-killing events) present a linear relation with temperatures and host-feeding events, respectively. Our findings contribute to a better understanding of biocontrol efficacy of parasitoid N. formosa against agromyzid leafminers at high-temperature seasons or environments.  相似文献   

橡胶盔蚧寄生蜂的种群结构与空间分布研究   总被引：1，自引：0，他引：1  

吴忠华  侯建勇  阿红昌  张祖兵  刘静  王进强 《植物保护》2009,35(4):54-57

通过普查与定点调查的方法,研究了橡胶盔蚧寄生蜂的种群结构和橡胶盔蚧及其寄生蜂的空间分布。结果表明,橡胶盔蚧天敌寄生蜂达10种,其中优势种2种,常见种4种,稀有种4种。优势种优雅岐脉跳小蜂和蜡蚧褐腰啮小蜂分别占整个种群数量的64.32%和11.76%。橡胶盔蚧寄生蜂在橡胶树不同方位上的分布不同。在层次上,寄生蜂在上层的平均寄生率要比下层高;在方位上,寄生蜂在南面的平均寄生率最高,而在北面的平均寄生率最低。通过Taylor幂法和Iwao的回归分析对橡胶盔蚧及其寄生蜂的空间分布型进行研究,得出结果一致,即橡胶盔蚧及其寄生蜂种群在橡胶树上的空间分布型均为聚集分布,且种群密度越高分布越聚集。  相似文献